1613400504 has 128 divisors (see below), whose sum is σ = 4691520000. Its totient is φ = 458625024.

The previous prime is 1613400497. The next prime is 1613400517. The reversal of 1613400504 is 4050043161.

It is a super-2 number, since 2×1613400504² = 5206122372614908032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173772 + ... + 182820.

It is an arithmetic number, because the mean of its divisors is an integer number (36652500).

Almost surely, 2^1613400504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1613400504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2345760000).

1613400504 is an abundant number, since it is smaller than the sum of its proper divisors (3078119496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1613400504 is a wasteful number, since it uses less digits than its factorization.

1613400504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117 (or 9113 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1613400504 is about 40167.1570315849. The cubic root of 1613400504 is about 1172.8632975105.

Adding to 1613400504 its reverse (4050043161), we get a palindrome (5663443665).

The spelling of 1613400504 in words is "one billion, six hundred thirteen million, four hundred thousand, five hundred four".